Justin Timberlake Bachelor Party Hits Las Vegas

As rumors of a weekend wedding swirl, so do reports that Justin Timberlake brought his sexy back with his bro team in Las Vegas.

Us Weekly reports that the 31-year-old groom held a rambunctious bachelor party at the Wynn hotel's Tryst nightclub on Thursday with about 20 male friends. And while a rep for the venue described JT and his boys as taking "over the dance floor," there were no "Hangover" type shenanigans here. Timberlake "was a good boy," the report claims. "It was just him and his guys."

Timberlake proposed to longtime girlfriend Jessica Biel, 30, in December 2011 while vacationing at a mountain resort in Jackson, Wyoming (not far from the mountains of Montana, where the pair are rumored to be marrying ). The couple have been dating on and off since 2007. In a June 2011 interview with Vanity Fair, Timberlake said of Biel: "She is single-handedly the most important person my life… In my 30 years, she is the most special person, ok? I just don't want to say much more, because I have to protect things that are dear to me -- for instance, her."